I was playing the 3rd scenario in Main-Spessart bahn route when I ran into a red light just 1 km away from the last stop, the scenario was abaut to be completed. I pressed tab to get permission to pass but was replied with "Denied, no route avaliable". I waited for 10 minutes and tried again and again but nothing changed. I pressed 9 to see the route map and I saw no other moving or approaching train. I also had this problem in one of the scenarios in WSR route too. It doesn't make sense to wait for 10 minutes and still get no pass. So I don't think I did something wrong.